My Take on Sonic's Rival

Answer me this...Metal Sonic is a better Sonic rival than Shadow. Shadow might be an interesting character and all, but let's be real. He's a furry Sephiroth that keeps coming back to the Sonic 3D games. Sonic's rival is a counterpart that made by Dr. Eggman and has a mind of his own with a sole purpose of defeating Sonic the Hedgehog. Do you think Metal Sonic is a better rival than Shadow? Do you still think Shadow is the world's ultimate life form? Do you think a farmer with a shotgun from DBZ is a better Sonic rival?